Physiological Studies on Delbergia Sissoo (Roxb.) : Some effectiveness, inteeraction of foliar Zn application and soil texture on Dalbergia sissoo (Roxb)seedling production

Dalbergia sissoo (Roxb.) trees is one of the new introduced species in Iraq and Iraqi Kurdistan Region, and there isn't any previous studies on this species, and because of this tree is considered as one of the most common multipurpose species, which deserves greater consideration for tree farming, reforestation and agroforestry applications and the good value for its timber, and it's an important sources of medicines.This study were conducted to cover many sides on this species growth and development, in order to increase its successfully in Iraq environment, such as pre-sowing treatment on seeds pod, the most suitable date for seed sowing, the most suitable cultivating soil for best seedling growth and the effect of zinc on growth and some physiological characteristic of the seedling.